Machine for setting and adjusting plow-irons



(No Model.)

B. J. SAWYER.

MACHINE FOR SETTING AND ADJUSTING PLOW IRONS.

No. 352,156. Patented Nov. 9, 1386.

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, UNITED STAT S I PATENT ()FFIGE.

EDWARD JOHN SAWYER, OF PERHAM, MINNESOTA.

'MACHINE FOR SETTING AND ADJUSTING PLOWHRONS.

SPECIFICATION forming part of Letters Patent No. 352,156, dated November 9, 1886.

Application filed April 19, 1886.

" ham, in the county of Otter Tail and State of Minnesota, have invented certain new and useful Improvements in Plowshare and Landside Setting and Adjusting Machines, of which the following is a specification.

This invention relates to machines or implements for adjusting and setting the shares and landsides of plows in their proper relative po-' sitions and holding them while being welded; and it consists in the construction and arrangement of parts, as hereinafter shown and described.

In the drawings, Figure 1 is a rear elevation. Fig. 2is a plan View, and Fig. 3 is an end elevation, of the machine complete. Fig. 4 is a detached perspective view of the main base plate or frame. Fig. 5 is a detached perspective view of the adjustable landside-supporting plate Fig. 6 is a detached perspective view of one of the adjustable stops. Fig. 7 is a detached perspective view of the presserplate for forming the curve in the share. Fig. 8 is a detached perspective View of the landside=clamping plate. Fig. 9 is a detached perspective view of the landside-clamping cam reversed. Figs. 10 and 11 are perspective Views of portions of the adjacent ends of the landside and share, illustratingThe manner in which they are to be united.

A represents the main base-frame,having aconcave upper surface, a, conforming to the curve of a plowshare, and with depressionA at one end, on which an adjustable plate, A is pivoted by one of its corners atb. Upon one end, ofthis plate A next to the concave surface a, is an angular projection, Aflhaving a concave-upper surface, a, conforming to and forming a continuation of the surface a, so that when the plate A is placed in position on the depression A the two surfacesa a will be in the same plane horizontally. The angular side 6 of the projection A corresponds to the angle at which thelandside and share are united, the surfaces a a thus conforming to the under surface of the share, and the angular side e correspondingto theinner surface and outer end of the landside, so that if a landside, B, (see Fig. 10,) be set with its extreme point d" at the point (1 of the projection A, its for- Serial No. 199,418. (No model.)

conforming to the surfaces a a so that when the plate D is set on the plate A, withits side D against-the angular side e of the projection A, the three surfaces a a a will be in the same plane horizontally.

In the rear edge of the plate D a circular cavity, g, is formed, in which a cam, E,.piv-

oted on a pin, 9 on the plate A is adapted to fit, so that the oscillation of the cam upon its pivot 9 will cause the plate D to be adjusted upon the plateA to bring the side D of the plate D nearer to or farther away from the angular edge e of the projection A The side D thus forms a clamping-jaw, by which the landside' B may be firmly held against the projection A by the power exerted by the cam E. The cam E is provided with a handle, E", by which it may -be operated, and with ratchet-teeth h, by which it may be held at any desired point by a pawl, h, on the plate D, to prevent the cam E being moved accidentally. The handle E? may be jointed, as shown, so that it will drop down out of the way when not in use. The pawl k will be so set that it can be opened by the thumb of the hand with which the operator grasps the haudle E 7 I Upon the lower surface of the plate D are two small ribs, 2" 13 (see Fig. 8,) adapted to fit into blind slots i i (see Fig. 5) in the plate A', toact as guides tocause the projecting jaw D to always move and remain substantially parallel with the angular side 6 of the projection A". somewhat loosely, so'as to permit a small amount of play to the jaw D" to permit it to adapt itself to landsides of varying thicknesses and sizes; A gage or stop, m, will be attached to the upper end of the projection A, and made adjustable by a slot, m and setscrew m to regulate the position of the upper edge of the share Biat a point near its junc-' tion with the landside, and a similar gage or stop, m, is attached to the other end of the The ribs 2" i will fit the slots i 13 plate A, and adjustable by a set-screw, m fitting through a slot, m, in the gage, to regulate the position of the upper edge of the share at the point farthest from the landside.

As before stated, the plate A is pivoted at I) to the depressed portion A of the plate A, the object of thus pivoting the plate being to enable the projection A to be moved away from the main part of the plate A, to lengthen or shorten the length of the surfaces a a" to adapt the machine to plowshares of different lengths. with a slot, 1r, through which abolt, 1), passes from the plate A", so that the plate A may be locked in any desired position with relation to the main body of the plate A.

G is a presser-plate having a convex lower surface conforming to the outer surface of the plowshare B and connected to the plate A by a pivoted lever, G and by which it may be forced downward to press the share B down upon the surfaces a a.

t is a notch in the upper edge of the main plate A, into which the points of the tongs by which the share B is held will fit when the share is placed in position upon the surface a.

In forming new shares and landsides, they are each formed with the angles on their adjacent ends as nearly perfect as possible, and the stops at m and plate A properly adjusted, as before described. The landside B is then heated red-hot and inserted between the projection A and jaw D with its angular forward end, (1, projecting slightly beyond the surfaces a a", and clamped in place by the cam E. The edge d of the landslide B is then hammered down until it is evenwith the surfaces a a? and its lower point, d, drawn out in a slightly-wedged shape, as shown in Fig. 10, the lower edge of the projection A, where the angular side 6 meetsit,being curved slightly, as at c", to enable the landside-point d to be thus drawn out. Thc'share B is then likewise heated red-hot and placed upon the surfaces a a in proper position in relation to the stops m m" and projection A", and the presserplate G forced down upon it by the lever G which will bend the share into its proper form. The edge d of the share B is then brought to conform to the edge (1 of the landside B. The two parts B B are then removed and the edges (1 d brought to a welding-heat and again inserted into the machine and the two edges d (Z welded together, the gages m m insuring their proper position, and the curved end 6 of the angular side 6 of the projection A enabling the nose (1 of the share B to be very firmly welded to the wedge-shaped point d of the landside B.

The nose d of a plow is subjected to the greatest and most severe strains, and the greatest care should be taken to insure a perfect weld at this point. \Vith mydevice the weld at this point can be made very thorough without danger of displacing the share or landside or changing their relative positions. This is a very important advantage, as it is a very The depressed portion A is shown difficult matter to prevent either or both the share or landside from being drawn out of shape while being welded.

Another very important use to which this machine is applicable is as a guide or support to the share and landside when a wornout or broken share or landside is to be replaced on a plow. The old share and landside are first set into the machine, and the latter adjusted so that the share and landside properly fit in place. The broken or worn part is then removed from the perfect part and a new one fitted in its place, the machine being used, as before described, to hold them while being thus fitted and welded. \Vhen used under these circumstances, the gages m m and the adjustment of the plate A insure the new share or landside being attached in exactly the same position and angle as the old, so that they will fit the mold-board and plow-frame, when replaced, exactly as be-' fore, whereas when no such holding appara tus is used it is a very difficult matter to weld them together again in so exactly the same position as to insure them proper refitting.

The machine will also be found of great advantage in assisting in holding the share and landside in their proper relative positions while the share is being resharpencd. When used for this purpose, the share and landside, after removal from the mold-board and frame, are placed in the machine, and the gages m m and plate Aadjusted to fit them. The share, with the landside attached, is then heated, and its edge drawn out and sharpened, and then replaced in the machine, and if drawn out of shape by thc heating and drawing, that fact can be easily determined by noting the manner in which it fits the machine. If it has been drawn out of shape by theprocess of sharpening, it can be easily reshaped until it fits the machine, which will insure its refitting its place upon the plow. Much valuable time can thus be saved, and very much more accurate work performed than when this machine is not employed.

Having thus described my invention, what I claim as new is 1. A: plowshare and landside setting and holding machine, consisting of a main baseframe, A, having the concave upper surface a a, and angular side 6, and an adjustable angular holding-jaw, D substantially as set forth.

2. The combination of base-frame A, hav-' ing concave upper surface, a, adjustable sec tion A A, having concave surface a, and an" gular side 0, and an adjustable clamping-jaw, D substantially as set forth.

3. The combination of base-frame A, having concave upper surfaces, a a, adapted to fit the under surface of a plowshare, angular side a, for supporting a landside, adjustable jaw D D and presser-plate G, adapted to be forced down upon said concave surfaces, substantially as set forth.

ICC

4. The combination of base-frame A, hav- D, having concave upper surface, 0?, cam 11],

a ing concave upper surfaces, aaP, adapted tofit fitting said cavity and adapted, when oscllthe under surface of a plowshare, angular lated, to operate saidclamping-jaw, substanside 6, for supporting a landside, adjustable tially as set forth. 1 V

5 5 jaw D D and adjustable gages m m, sub- In testimony whereof I have hereunto set may stantially as set forth. i hand in the presence of two subscribing wit- 5. The combination of base-frame A, havnesses. 1 ing concave upper surfaces, 0/ (6*, adapted to fit EDWARD JOHN SAWYER. the under surface of a plowshare, angular side Witnesses: 10 e, forsupportingalandside, clamping-jaw con- S. BUTLER,

sisting of plate D, having cavity and side ALBERT PEL'roN. 

